要在用户点击按钮时打开一个对话框以获取用户输入,你可以使用JavaScript和HTML来实现这个功能。以下是一个简单的示例,展示了如何使用JavaScript创建一个模态对话框(modal dialog)并在用户点击按钮时显示它。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>用户输入对话框示例</title>
<style>
/* 模态对话框样式 */
.modal {
display: none; /* 默认隐藏 */
position: fixed; /* 固定位置 */
z-index: 1; /* 确保在最上层 */
left: 0;
top: 0;
width: 100%;
height: 100%;
overflow: auto;
background-color: rgba(0,0,0,0.4); /* 半透明背景 */
}
.modal-content {
background-color: #fefefe;
margin: 15% auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
.close {
color: #aaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: black;
text-decoration: none;
cursor: pointer;
}
</style>
</head>
<body>
<button id="openModalBtn">打开对话框</button>
<!-- 模态对话框 -->
<div id="myModal" class="modal">
<div class="modal-content">
<span class="close">×</span>
<h2>请输入信息</h2>
<form id="userInputForm">
<label for="name">姓名:</label>
<input type="text" id="name" name="name" required>
<label for="email">邮箱:</label>
<input type="email" id="email" name="email" required>
<button type="submit">提交</button>
</form>
</div>
</div>
<script>
// JavaScript代码
document.getElementById('openModalBtn').addEventListener('click', function() {
document.getElementById('myModal').style.display = 'block';
});
document.getElementsByClassName('close')[0].addEventListener('click', function() {
document.getElementById('myModal').style.display = 'none';
});
document.getElementById('userInputForm').addEventListener('submit', function(event) {
event.preventDefault(); // 阻止表单默认提交行为
const name = document.getElementById('name').value;
const email = document.getElementById('email').value;
alert(`姓名: ${name}\n邮箱: ${email}`);
document.getElementById('myModal').style.display = 'none'; // 关闭对话框
});
</script>
</body>
</html>
display: none;
)。×
),点击时隐藏对话框。领取专属 10元无门槛券
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